Solved: Remember that the bright lights covers most of their body?? That blocks most of the things. It may also safe to assume that their body emits pretty decent amount of light just to show their outline, but not as much as to show anything in plain sight.
GX Episode 13: How the heck could Chris accomplish such a stellar academic performance? She might be gifted and talented, but lacking 8 years of formal education, give-or-take, will surely degrade her academic capability. Obviously during 6 years being trafficked, she could not learn anything much, but 2 years with Fine is probably not enough to catch up with senior high-level material.